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MMA2631KW Datasheet(PDF) 7 Page - Freescale Semiconductor, Inc |
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MMA2631KW Datasheet(HTML) 7 Page - Freescale Semiconductor, Inc |
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7 / 45 page  Sensors Freescale Semiconductor, Inc. 7 MMA26xxKW 2.4 Electrical Characteristics - DSI VL ≤ (VCC - VSS) ≤ VH, TL ≤ TA ≤ TH, ΔT ≤ 25 K/min, unless otherwise specified 2.5 Electrical Characteristics - Signal Chain VL ≤ (VCC - VSS) ≤ VH, TL ≤ TA ≤ TH, ΔT ≤ 25 K/min, unless otherwise specified. # Characteristic Symbol Min Typ Max Units 38 BUSOUT Bus Switch Resistance 0V ≤ VBUSIN ≤ 30 V, ISW = 160mA *RSW ⎯ 4.0 8.0 Ω (1) 39 HCAP Rectifier Leakage Current VBUSIN = 0 V, VHCAP = 9.0V * IRLKG ⎯⎯ 100 μA(1) 40 41 BUSIN to HCAP Rectifier Voltage Drop (VBUSIN = 7V) IHCAP = -15 mA IHCAP = -100 mA * * VRECT VRECT ⎯ ⎯ 0.75 0.9 1.0 1.2 V V (1) (1) 42 43 BUSIN Bias Current VBUSIN = 8.0V, VHCAP = 9.0V VBUSIN = 4.5V, VHCAP = 24V, No Response Current *IBUSIN_BIAS IBUSIN_BIAS -100 -100 ⎯ ⎯ 100 100 μA μA (1) (1) 44 45 BUSOUT Bias Current VBUSOUT = 8.0V, VHCAP = 9.0V VBUSOUT = 4.5V, VHCAP = 24V, No Response Current *IBUSOUT_BIAS IBUSOUT_BIAS -100 -100 ⎯ ⎯ 100 100 μA μA (1) (1) 46 BUSOUT Discharge Resistance RBUSOUT_Discharge 3500 ⎯ 8000 Ω (3) 47 BUSIN Response Current VBUSIN = 4.0V * IRESP 9.9 11 12.1 mA (1) 48 49 BUSIN to BUSOUT Leakage Current (BUS SWITCH open) VBUSIN = 24.0V, VBUSOUT = 0V VBUSIN = 0V, VBUSOUT = 16V *ISW_Leak IRSW_Leak -20 -20 ⎯ ⎯ 20 20 μA μA (1) (1) 50 51 BUSIN Logic Thresholds Signal Threshold Frame Threshold * * VTHS VTHF 2.8 5.5 3.0 6.0 3.2 6.5 V V (1) (1) 52 53 BUSIN Logic Hysteresis Signal Frame * * VHYSS VHYSF 30 100 ⎯ ⎯ 90 300 mV mV (3) (3) # Characteristic Symbol Min Typ Max Units 54 55 56 57 58 59 60 61 Sensitivity (10-bit @ 100Hz referenced to 0Hz) 25g Range 50g Range 62.5g Range 125g Range 187g Range 312g Range Total Sensitivity Error (including non-linearity) TA = 25°C TL ≤ TA ≤ TH * * * * * * * * SENS SENS SENS SENS SENS SENS ΔSENS_25 ΔSENS ⎯ ⎯ ⎯ ⎯ ⎯ ⎯ -5 -7 20.48 10.24 8.192 4.096 2.731 1.638 ⎯ ⎯ ⎯ ⎯ ⎯ ⎯ ⎯ ⎯ +5 +7 LSB/g LSB/g LSB/g LSB/g LSB/g LSB/g % % (1,14) (1,14) (1,14) (1,14) (1,14) (1,14) (1) (1) 62 Digital Offset 10-bit output * OFF10Bit 460 512 564 LSB (1) 63 64 Range of Output (10-Bit Mode) Acceleration Internal Error RANGEACC RANGEERR 1 ⎯ ⎯ 0 1023 ⎯ LSB LSB (3) (3) 65 66 Cross-Axis Sensitivity Z-axis to X-axis Y-axis to X-axis VZX VYX -5 -5 — — +5 +5 % % (3) (3) 67 ADC Output Noise Peak (1 Hz - 1 kHz, 10-Bit) nSD -4 — +4 LSB (3) 68 System Output Noise (10-Bit, RMS, All Ranges) nRMS ⎯⎯ +1.2 LSB (3) 69 70 Non-linearity (all ranges) 10-bit output, Range < 50g 10-bit output, 50g ≤ Range ≤ 312.5g NLOUT_sub50g NLOUT_sub250g -2 -2 ⎯ ⎯ +2 +2 % % (3) (3) |
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